The ValidationCondition column on a container field defines conditions for whether an entered value is valid or not. Invalid values cannot be saved to the database.
Supports Boolean logic
OR's (||) and parenthesis. Uses standard C# equality and relational operators (==, !=, <, >, <=, >=). You may reference existing entries on the same page by their name, in this case,
The ValidationCondition column applies to the following controls: